So browsing around various sites I found a guy who will casts spells for people for free. Which you know cool beans and all. So I chat him up and ask him for a spell. He says sure but he says he needs my full name and date of birth to "Run a chart". Right off that sounds fishy to me.
I know spells cast by oneself for oneself ate stronger than spells cat by others for oneself that's not what I'm trying to verify. What I wanna know is if he's actually trying to help me to not.

I would not give my name, birth date, or any personal information out over the internet, and this sounds like it has fraud written all over it. If I were you I would stop communicating with this person.

When someone asks me to cast an spell for them i just ask their first name and last name if they need health, money or protection. If they need to get rid of someone or something, i ask the name(s) of the one(s) who they want to get rid of, or the situation they want to be free.

Most people who advertise online that they will cast a spell for you (most not saying all) are fakes or cons. Don't ever give out your information online, and you probably shouldn't in person either. For your own safety that is.